From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD92FC43381 for ; Mon, 4 Mar 2019 10:02:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9B19B2082F for ; Mon, 4 Mar 2019 10:02:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="iA2I8KO1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B19B2082F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ez1K/RIYd5zyd2hZv4y17LqLf5uSmc0eNDb4TxLB444=; b=iA2I8KO1G5wLfP UZVAI0xVJ4i0mEWMonZYR8uTysXl2AvRefQLVnqXmkPtbBGAd29F24OnFrKhuKG6NIL6FlXbirWhy szD9qG+Bur0FA8/LQ1xPl0o4mdqdSv/pSkq4g0J/Hq1/gPF9dP/h+jthuwAQ5qIoJOZdI0ScrVb6c B/M34xbPqNG0I96pwwqXii0kiGXw9U49JK6HR3TuGl/Vl8+MY1pLLuTB/1NPt6bpqjEI3+HI1nwns aPaB5oeV7BRgAGoOO7hGMf303shT1EyynFPRcW6G/kFsxAVmYRPxK2H34kd8ZZhq5Bnil+aKsgoVt di4h3AAwVJSkX9dv9N1A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h0kQO-0001xg-W8; Mon, 04 Mar 2019 10:02:21 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h0kQL-0001wx-Sy for linux-arm-kernel@lists.infradead.org; Mon, 04 Mar 2019 10:02:19 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7733EEBD; Mon, 4 Mar 2019 02:02:15 -0800 (PST) Received: from e107155-lin (e107155-lin.cambridge.arm.com [10.1.196.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id F0F473F703; Mon, 4 Mar 2019 02:02:13 -0800 (PST) Date: Mon, 4 Mar 2019 10:02:08 +0000 From: Sudeep Holla To: Jeremy Linton Subject: Re: [PATCH] ACPI/PPTT: Simplify leaf node detection. Message-ID: <20190304100208.GA32379@e107155-lin> References: <20190301185221.608501-1-jeremy.linton@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190301185221.608501-1-jeremy.linton@arm.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190304_020217_934168_7C756001 X-CRM114-Status: GOOD ( 15.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lorenzo.Pieralisi@arm.com, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Sudeep Holla , linux-arm-kernel@lists.infradead.org, lenb@kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Mar 01, 2019 at 12:52:21PM -0600, Jeremy Linton wrote: > ACPI 6.3 bumps the PPTT table revision and adds a LEAF_NODE flag. > This allows us to avoid a second pass through the table to assure > that the node in question is a leaf. > Reviewed-by:Sudeep Holla -- Regards, Sudeep > Signed-off-by: Jeremy Linton > --- > drivers/acpi/pptt.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/acpi/pptt.c b/drivers/acpi/pptt.c > index ad31c50de3be..065c4fc245d1 100644 > --- a/drivers/acpi/pptt.c > +++ b/drivers/acpi/pptt.c > @@ -209,6 +209,9 @@ static int acpi_pptt_leaf_node(struct acpi_table_header *table_hdr, > struct acpi_pptt_processor *cpu_node; > u32 proc_sz; > > + if (table_hdr->revision > 1) > + return (node->flags & ACPI_PPTT_ACPI_LEAF_NODE); > + > table_end = (unsigned long)table_hdr + table_hdr->length; > node_entry = ACPI_PTR_DIFF(node, table_hdr); > entry = ACPI_ADD_PTR(struct acpi_subtable_header, table_hdr, > -- > 2.20.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel